Monthly outlook for Union Star, MO: average high 65.4°, average low 51.5°. That is 1.3° above the climate normal for October. Precipitation is expected on 6 days (about 3.3 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 12 October (88.7°), the coolest 18 October (37.4°).
65.4°/51.5°
Average high / low
+1.3°
Above normal
6 / 4
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
69.9°
64°
+3.3°
21 October – 30 October
57.9°
60.4°
-1.4°
31 October – 9 November
at normal
55.2°
—
October records over 66 years
92.8°10 October 1963All-time high
17.6°27 October 1997All-time low
Climate normals and records are computed from the nearest reference point — King City (6 mi).
Mon, 1289° / 68°0
89 °
Union Star, Monday, 12 October
Clear. High 89°, low 68°.
Pressure29.77 inHg
Wind16.7 mph S
Humidity57%
Visibility6.2 mi
Dew point64°
Tue, 1387° / 65°0.06
87 °
Union Star, Tuesday, 13 October
Light rain. High 87°, low 65°.
Pressure29.85 inHg
Wind5.4 mph SE
Humidity70%
Visibility6.2 mi
Dew point69°
Wed, 1468° / 62°0.48
68 °
Union Star, Wednesday, 14 October
Rain. High 68°, low 62°.
Pressure30.03 inHg
Wind10.9 mph NE
Humidity90%
Visibility3.6 mi
Dew point60°
Thu, 1572° / 59°1.07
72 °
Union Star, Thursday, 15 October
Rain. High 72°, low 59°.
Pressure29.94 inHg
Wind6.5 mph SW
Humidity97%
Visibility6.2 mi
Dew point69°
Fri, 1658° / 48°0.01
58 °
Union Star, Friday, 16 October
Light rain. High 58°, low 48°.
Pressure30.59 inHg
Wind17.7 mph N
Humidity53%
Visibility—
Dew point38°
Sat, 1753° / 39°0
53 °
Union Star, Saturday, 17 October
Mostly clear. High 53°, low 39°.
Pressure30.59 inHg
Wind10.6 mph S
Humidity35%
Visibility—
Dew point23°
Sun, 1860° / 37°0
60 °
Union Star, Sunday, 18 October
Clear. High 60°, low 37°.
Pressure30.33 inHg
Wind20.5 mph SW
Humidity34%
Visibility—
Dew point27°
Mon, 1962° / 43°0.01
62 °
Union Star, Monday, 19 October
Light rain. High 62°, low 43°.
Pressure30.30 inHg
Wind14.5 mph S
Humidity37%
Visibility—
Dew point32°
Tue, 2064° / 54°0
64 °
Union Star, Tuesday, 20 October
Overcast. High 64°, low 54°.
Pressure30.15 inHg
Wind18.1 mph S
Humidity69%
Visibility—
Dew point48°
Wed, 2164° / 59°0.37
64 °
Union Star, Wednesday, 21 October
Rain. High 64°, low 59°.
Pressure30.00 inHg
Wind17.6 mph S
Humidity91%
Visibility—
Dew point58°
Thu, 2267° / 61°0.28
67 °
Union Star, Thursday, 22 October
Light rain. High 67°, low 61°.
Pressure30.03 inHg
Wind15.5 mph S
Humidity91%
Visibility—
Dew point63°
Fri, 2366° / 50°0.98
66 °
Union Star, Friday, 23 October
Rain. High 66°, low 50°.
Pressure29.94 inHg
Wind19.4 mph S
Humidity94%
Visibility—
Dew point64°
Sat, 2451° / 41°0
51 °
Union Star, Saturday, 24 October
Overcast. High 51°, low 41°.
Pressure30.30 inHg
Wind15.9 mph N
Humidity65%
Visibility—
Dew point37°
Sun, 2549° / 38°0
49 °
Union Star, Sunday, 25 October
Overcast. High 49°, low 38°.
Pressure30.27 inHg
Wind8.9 mph NW
Humidity56%
Visibility—
Dew point31°
Mon, 2650° / 38°0
50 °
Union Star, Monday, 26 October
Clear. High 50°, low 38°.
Pressure30.21 inHg
Wind19.4 mph NW
Humidity44%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2759° / 43°0.07
59 °
Union Star, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (1999)
Record low18° (1997)
Wed, 2858° / 42°0.08
58 °
Union Star, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation18%
Record high79° (2024)
Record low25° (1969)
Thu, 2959° / 43°0.09
59 °
Union Star, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high81° (2024)
Record low24° (1980)
Fri, 3059° / 44°0.15
59 °
Union Star, Friday, 30 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.15 in
Chance of precipitation37%
Record high77° (2024)
Record low24° (1993)
Sat, 3157° / 43°0.15
57 °
Union Star, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.15 in
Chance of precipitation33%
Record high77° (1968)
Record low22° (1993)
Sun, 0158° / 42°0.17
58 °
Union Star, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.17 in
Chance of precipitation28%
Record high76° (1990)
Record low23° (1991)
Mon, 0255° / 40°0.07
55 °
Union Star, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation25%
Record high77° (1964)
Record low15° (1991)
Tue, 0355° / 40°0.11
55 °
Union Star, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (2022)
Record low12° (1991)
Wed, 0455° / 40°0.1
55 °
Union Star, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.1 in
Chance of precipitation23%
Record high76° (1978)
Record low13° (1991)
Thu, 0554° / 39°0.06
54 °
Union Star, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation28%
Record high73° (2015)
Record low22° (1967)
Fri, 0655° / 38°0.07
55 °
Union Star, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation15%
Record high72° (1999)
Record low19° (1991)
Sat, 0755° / 38°0.02
55 °
Union Star, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.02 in
Chance of precipitation10%
Record high73° (1966)
Record low3° (1991)
Sun, 0855° / 39°0.05
55 °
Union Star, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation23%
Record high76° (1980)
Record low-3° (1991)
Mon, 0955° / 39°0.12
55 °
Union Star, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.12 in
Chance of precipitation33%
Record high72° (1999)
Record low18° (2018)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Union Star, MO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Union Star, MO since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.